<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2017/9/15
 * Time: 16:12
 */
//5.4以前
$a = array(
    "aaa",
    2,
    3
);
$b = ['aa','bb','c,c','aadsasa',"',aa'','','','',,'"];//5.4及以后
$rr = print_r($b,true);
var_dump($b);
var_dump($rr);
var_dump(count($b));
echo $a[0];


